Originally Posted by Mike@N54Tuning.com
The JB4 N55 ISO will make a lot more power and has a lot more features. Not to mention costs a lot less.
Thansk mike. I already know. My very first tune was the JB, I went from the jb3 stage 1 to the stage 2.
Current: 2011 Honda Accord.
Past: 2013 335i 6mt msport
JB4, ER Downpipe, ATM FMIC, aFe Momentum PRO 5R Intake, Pure Stage 2
Past: 2011 335i coupe 369 whp/444 torque